Product Manual

5
SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION
A. MOTOR DOES NOT RUN 1. Wiring problem Conrm all connections are tight and correct voltage is
getting to the pump.
2. Fuse blown Inspect fuse in fuse holder on power cord. If blown, replace.
3. Rotor or vanes jammed Remove coverplate to expose rotor. Remove any obstructions.
Check for excessive vane and slot wear. If damaged, replace.
4. Circuit breaker switch defective Replace switch
5. Motor bad Contact the factory.
B. MOTOR RUNS, BUT NO 1. Tank level low Add fuel to tank.
FLOW
2. Clogged lter assembly Remove and clean lter assembly or replace.
3. Suction line problem Remove suction pipe and remove any obstructions.
4. Broken motor shaft key Replace shaft key in end of shaft. Check slot and vane for
excessive wear. Remove any obstructions.
5. Bypass poppet stuck open Remove bypass poppet and clean. If damaged, replace.
6. Motor running backwards Check wiring to conrm correct polarity.
C. PUMP FAILS TO PRIME 1. Air leak in system Check for air leaks at all joints. Reseal and tighten.
2. Bypass poppet stuck open Remove bypass poppet and clean. If damaged, replace.
3. Vanes worn or sticking Check slots and vanes for excessive wear or damage. If
damaged, replace.
4. Motor runs backwards Check wiring to conrm correct polarity.
D. LOW FLOWRATE 1. Low voltage Check battery voltage. Conrm voltage is correct.
2. Wiring problem Conrm correct polarity and all connections are tight. Conrm
wire size is correct and not too small.
3. Clogged lter assembly Remove and clean lter assembly or replace.
4. Air leak in system Check for air leaks at all joints. Reseal and tighten.
5. Bypass poppet stuck open Remove bypass poppet and clean. If damaged, replace.
6. Vanes worn or sticking Remove any obstructions. Check rotor slots and vanes for
excessive wear. Replace if damaged.
7. Outlet is blocked Check all accessories for blockage. Remove any obstructions.
8. Clogged or broken suction pipe Remove pump and clear suction pipe, replace as needed.
9. Fuel level low Fill tank.
10. Using off-the-shelf automatic Factory-supplied automatic nozzle is recommended.
nozzle
11. Hose damaged Replace hose.
E. MOTOR STALLS WHEN 1. Bypass poppet stuck closed Remove bypass poppet and clean or replace as needed.
NOZZLE IS CLOSED
2. Rotor or vanes worn Check rotor and vanes for excessive wear. Replace as needed.
3. Low voltage Check incoming battery voltage and tighten wiring connections.
4. Motor defective UL Listing requires specic treatment for motor replacement,
contact factory.
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TROUBLESHOOTING